Galatians 4:13

On the contrary, you know that it was because of a physical illness that I [remained and] preached the gospel to you the first time;

1 Corinthians 2:3

I came to you in [a state of] weakness and fear and great trembling.

Galatians 1:6

I am astonished and extremely irritated that you are so quickly shifting your allegiance and deserting Him who called you by the grace of Christ, for a different [even contrary] gospel;

Acts 16:6

Now they passed through the territory of Phrygia and Galatia, after being forbidden by the Holy Spirit to speak the word in [the west coast province of] Asia [Minor];

2 Corinthians 10:10

for they say, “His letters are weighty and forceful and impressive, but his personal presence is unimpressive and his speech contemptible [of no account].”

2 Corinthians 11:6

But even if I am unskilled in speaking, yet I am not [untrained] in knowledge [I know what I am talking about]; but we have made this evident to you in every way, in all things.

2 Corinthians 11:30

If I must boast, I will boast of the things that reveal my weakness [the things by which I am made weak in the eyes of my opponents].

2 Corinthians 12:7-10

Because of the surpassing greatness and extraordinary nature of the revelations [which I received from God], for this reason, to keep me from thinking of myself as important, a thorn in the flesh was given to me, a messenger of Satan, to torment and harass me—to keep me from exalting myself!

2 Corinthians 13:4

For even though He was crucified in weakness [yielding Himself], yet He lives [resurrected] by the power of God [His Father]. For we too are weak in Him [as He was humanly weak], yet we are alive and well [in fellowship] with Him because of the power of God directed toward you.

Treasury of Scripture Knowledge

Summary

Ye know how through infirmity of the flesh I preached the gospel unto you at the first.

General references

Bible References

Through

1 Corinthians 2:3
I came to you in [a state of] weakness and fear and great trembling.
2 Corinthians 10:10
for they say, “His letters are weighty and forceful and impressive, but his personal presence is unimpressive and his speech contemptible [of no account].”
2 Corinthians 11:6
But even if I am unskilled in speaking, yet I am not [untrained] in knowledge [I know what I am talking about]; but we have made this evident to you in every way, in all things.
2 Corinthians 12:7
Because of the surpassing greatness and extraordinary nature of the revelations [which I received from God], for this reason, to keep me from thinking of myself as important, a thorn in the flesh was given to me, a messenger of Satan, to torment and harass me—to keep me from exalting myself!
2 Corinthians 13:4
For even though He was crucified in weakness [yielding Himself], yet He lives [resurrected] by the power of God [His Father]. For we too are weak in Him [as He was humanly weak], yet we are alive and well [in fellowship] with Him because of the power of God directed toward you.

At

Galatians 1:6
I am astonished and extremely irritated that you are so quickly shifting your allegiance and deserting Him who called you by the grace of Christ, for a different [even contrary] gospel;
Acts 16:6
Now they passed through the territory of Phrygia and Galatia, after being forbidden by the Holy Spirit to speak the word in [the west coast province of] Asia [Minor];

General references

1 Corinthians 2:3
I came to you in [a state of] weakness and fear and great trembling.